The Masked Singer

I’ve seen Scissor Sisters in concert and that could well be Jake Shears. Very similar style of movement and dance.

I too didn't recognize either of them, but they did have very good voices, and as sootycat said, this show is perfect for a Saturday night.

Only 3 left at the end of the programme beth, you're right about who it was but I'd better put the info in a spoiler..

Didn't guess it was Denise Van Outen as the Fox
I reckon the Hedgehog is Jason Manford.
I was sure the Octopus was Charlotte Church, but now I'm not so sure.

I thought at first that it was Michael Ball, but now I'm not so sure. He does stand in the same way when singing, but the voice has varied a bit, although on 2nd thoughts, maybe that was to put us off.......

Both of the females left are very good, and undoubtedly professionals on stage. I wondered if Octopus could be Lesley Garrett, but Charlotte Church is a good guess, Sootycat.

I haven't been watching this, but I saw some ob Saturday and really got into it. I'd originally seen it on the Australian Gogglebox, but their celebs were people I didn't recognise, but Jake Shears made me think ITV have put a bit more money into there version.

Hedgehog is soooo Jason Manford. No way it's Michael Ball, he's a tallish guy and I don't think Hedgehog has the right size chest! (Ball is broader). I read Alfie Boe, but his high range is very good and Hedgehogs version of Chandalier was good but the high notes, I felt he really had to try for them, where for Boe they'd be easier. Couple the musicals with the travelling to venues (could be comedy or theatre) and it's Manford. I saw him in The Producers and he's very good and can sing...Marion saw him in Curtains didn't you...if you're watching this?
Also the bits to camera, if you ignore the strange robotic voice, and imagine a Manc accent, he has the cadence of Manford albeit with a fake posh accent. But it's Manford. Gonna watch the rest now.

jodie Comer as Queen Bea? I think shes probably a bit busy for it. She did sound Liverpudlian though, but then JRoss asked if they were Geordie and I thought maybe Cheryl. But she's on BBC1 at the same time, so doubtful.
I might try and fast forward though the previous episodes as I don't know what any of the clues are! Although having seen the CeeLo Green clues after the reveal, I don't think it'll matter, they've obviously got the clue setter from 3-2-1 to do them!
Defo Manford after hearing him do My Way.

Octopus could be Charlotte Church or Katherine Jenkins. Both have sang for pensioners and royalty. The choral song, made me think church, Charlotte Church, but then it could be a clue to venues theyve played and that would work for both. Probably more likely to be CChurch.
JRoss mentioned Emmerdale and Neighbours/Jason Donovan as previous clues, if so it could be Sheree Murphy as she's been in Emmerdale and Neighbours. Also Amy Nuttall was in Emmerdale and has quite an operatic/musicals voice, don't know about the Aussie connection but could've been in a musical with Donovan.

I'm going to have to watch the other for the clues!